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Finding the Fourth Proportional to 439,959.14, 607,143.62 and 238,755.14

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Solution

The fourth proportional to 439,959.14, 607,143.62 and 238,755.14 is: 329,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,959.14 : 607,143.62 = 238,755.14 : x
  2. Step 2: Convert to fraction form
    439,959.14/607,143.62 = 238,755.14/x
  3. Step 3: Cross multiply
    439,959.14x = 607,143.62 × 238,755.14
  4. Step 4: Simplify right side
    439,959.14x = 144,958,660,317.29
  5. Step 5: Solve for x
    x = 144,958,660,317.29/439,959.14
  6. Step 6: Final answer
    x = 329,482.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.